(1) The Supreme Court shall, in determining an application for an order under section 8 or 9A, have regard to the testator's reasons, so far as they are ascertainable, for making the dispositions made by will or for not making provision or further provision, as the case may be, for a person who is entitled to make an application under this Act.
(2) The Supreme Court may receive in evidence a statement signed by the testator and purporting to bear the date when it was signed and to set out reasons for making or not making provision or further provision by the will of the testator for a person as evidence of those reasons.
(3) If a statement of a kind referred to in subsection (2) is received in evidence, the Supreme Court shall, in determining what weight (if any) ought to be attached to the statement, have regard to all the circumstances from which any inference may reasonably be drawn about the accuracy of the matters referred to in the statement.